This set contains 53 individual hand tools, including 31 Series 99® interchangeable screwdriver/nutdriver blades and handles, as well as 2 specialized screwdriver/nutdriver kits. The case is made from rugged Cordura®, featuring dual heavy-duty zippers and soft leather-wrapped handles. On the outside, there is 1 pocket on one side and 2 smaller pockets on the opposite side. Cordura® is a registered trademark of DuPont.